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The occurrence of non-native pink salmon Oncorhynchus gorbuscha in multiple river systems in Ireland in 2017 was unprecedented and reflected similar concurrent events observed in other countries in the North Atlantic region. Thirty-six fish were captured in a total of 11 river systems located in the south-west, west and north-west of Ireland in the period June to September 2017. The biological characteristics of sampled specimens are described and the potential for establishment in Ireland are considered.
Millane et al. (2019) studied this question.